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双弹性板矩形空腔内噪声的有源力控制 被引量:1

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摘要 研究了在弹性板上施加不同参数的有源力对腔内噪声进行控制的问题。构建双弹性板构成的封闭矩形声腔模型,对封闭声腔的结构-声耦合特性进行分析,推导了在封闭声腔有源力控制作用下声压计算公式,给出采用有源力控制的最优控制模型。分析了弹性板在不同参数的次级力源激励下腔内局部声场的声压级响应,并建立了仿真模型对局部声场的减噪效果进行分析。结果表明,合理选择次级力源的参数对控制效果的影响较为明显,且次级力源的个数并非越多越好。
作者 陈大林 陈南
出处 《振动.测试与诊断》 EI CSCD 北大核心 2015年第1期133-136,193-194,共4页 Journal of Vibration,Measurement & Diagnosis
基金 国家自然科学基金资助项目(50975047)
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参考文献9

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